Where does K&N Engineering, Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), K&N Engineering, Inc. ranks #2,969 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does K&N Engineering, Inc. hold?

K&N Engineering, Inc. holds 128 US utility patents granted between 2015 and 2025, spanning 51 technology areas.

What is K&N Engineering, Inc.'s Innovation Score?

K&N Engineering, Inc. has an Innovation Score of 56.2 out of 100 (top 6% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does K&N Engineering, Inc. focus on?

K&N Engineering, Inc.'s top technology area is B01D (Separation) with 60 patents, ranking #68 of 3,536 assignees active in that subclass. Grants appear in 51 CPC subclasses total.

Is K&N Engineering, Inc.'s patent grant rate increasing or decreasing?

K&N Engineering, Inc.'s recent grant velocity is +172% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for K&N Engineering, Inc.'s patents?

K&N Engineering, Inc.'s patents average 12.7 claims each. This is an aggregate descriptive count from the grant record; it does not establish claim scope, legal strength, enforceability, or design-around risk.

How is the K&N Engineering, Inc. patent data sourced?

All patent data comes from USPTO PatentsView, a public research dataset maintained by the United States Patent and Trademark Office covering US granted utility patents from 2015 to 2025.

USPTO 2015–2025 USPTO PatentsView US Corporation

K&N Engineering, Inc.

USPTO PatentsView assignee record - 128 granted patents across 51 technology areas, recorded in grant years 2015–2025. Grant-trend analysis is cross-referenced to USPTO Patent Public Search; it does not measure application filings, current R&D, or legal strength. Primary class: B01D (Separation).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, K&n ranks #2,969 of 49,997 tracked US assignees by granted-patent volume, with 128 patents across 51 technology areas.

#2,969
of 49,997 US assignees by volume: Top 6%
by Innovation Score (56.2/100): 12.7
avg claims per patent: +172%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R2969 · US Corporation #2,969 · 128 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-RICH · TYPE-USCORP · VEL-SURGE · BOOK-FULL

GRANTS-MID 128 grants
TOP-DECILE #2,969/49,997
PHOTO-FINISH Hitachi Zosen
CPC-WIDE B01D · 51 areas
INNOV-PAR 56.2/100
CLAIMS-RICH 12.7 claims/avg
TYPE-USCORP US Corporation
VEL-SURGE +172% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Hitachi Zosen Corporation (±0 grants)

Instrument codes from this assignee’s USPTO PatentsView grant sheet: volume band, corpus rank, photo-finish peer, lead CPC, Innovation Score, claim depth, assignee type, velocity, and book completeness. Not a USPTO rating of patent strength.

How K&n’s 56.2 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Volume 16.8 pts (30%) Velocity 6.8 pts (12%) Breadth 25.0 pts (44%) Claim depth 7.6 pts (14%)

Qualcomm Incorporated · highest

85
Tadano · near

56
Eight Sleep · near

56
K&N Engineering · this assignee

56
Leer Group · near

56
Toyota Motor · near

56
3D Lighting… · lowest

7

What this shows K&n's Innovation Score is 56.2/100 (top 6% of the PatentsView-derived corpus). The chart places that score against the nearest Innovation Score peers plus corpus poles, not a reprint of the volume ranking.

Does more volume mean deeper claims for K&n?

Each dot is one of K&n’s 8 nearest volume peers (same corpus rank neighbourhood as the chart above), placed by total granted patents (horizontal) against average claims per patent (vertical). K&n’s own 12.7 claims/patent is ABOVE the 8.4 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

K&n vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

How K&n's grant cadence moved

Between 2020–2024, K&N Engineering, Inc. received 87 grants versus 32 in 2015–2019 (+172% equal-window velocity, above median growth). Across complete PatentsView years, output peaked in 2024 at 20 grants and bottomed in 2015 at 2. Lead class B01D accounts for 46.9% of the portfolio across 51 subclasses. Volume neighbours: Hitachi Zosen Corporation (#2,965) and Netease (HANGZHOU) Network Co., Ltd. (#2,973).

K&n's three-year grant acceleration

From 2019–2021 to 2022–2024, K&N Engineering, Inc. moved from 50 to 51 grants (1.02x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #1,131. See the growth leaderboard.

Hitachi Zosen

128
Home BOX Office

128
Ideal Industries

128
Ichikoh Industries

128
Luminar

128
Microtech Knives

128
NCR Voyix

128
Netease (Hangzhou…

128
K&N Engineering ◀

128

What this shows K&N holds 128 patents at rank #2,969, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near K&N

By rank, the assignees closest to #2,969 in granted patent volume.

Leaders in B01D (Separation)

Other assignees with the most granted patents in K&N's primary technology class.

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for K&N, neither rank-band nor same-CPC leaders (those blocks stay above). In B01D (Separation), K&N ranks #68 of 3,536 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (56 here).

Toyota Motor Corporation 56 Leer Group 56 Eight Sleep Inc. 56 Tadano Ltd. 56

Similar claim depth

Nearest assignees by average claims per patent (12.7 here).

Everdisplay Optronics (Shanghai) Co., Ltd 12.7 avg Montres Breguet S.A. 12.7 avg Continental Automotive Technologies GmbH 12.7 avg Soclean, Inc. 12.7 avg

K&n's Innovation Score vs. every tracked assignee

Composite of portfolio volume, grant velocity, technology breadth, and claim depth (0–100)

56 Top 6% higher than 94% of 49,997 US assignees

Each bar is a band; taller bars hold more US assignees. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source USPTO PatentsView, PlainPatent Innovation Score · 2015–2025

USPTO utility patent grants by year · 2015–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

K&N Engineering, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	1.6%
2016	2	1.6%
2017	8	6.3%
2018	6	4.7%
2019	14	10.9%
2020	18	14.1%
2021	18	14.1%
2022	15	11.7%
2023	16	12.5%
2024	20	15.6%
2025partial year	9	7.0%

Which technologies does K&N Engineering, Inc. patent most?

B01D - Separation 60

F02M - Supplying Combustion Engines IN General With Combustible Mixtures OR Constituents Thereof 58

Y02T - Climate Change Mitigation Technologies Related TO Transportation 19

F24F - AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR Currents FOR Screening 10

F02D - Controlling Combustion Engines 10

G01M - Testing Static OR Dynamic Balance OF Machines OR STRUCTURES; Testing OF Structures OR Apparatus, NOT Otherwise Provided FOR 8

F02B - Internal-combustion Piston ENGINES; Combustion Engines IN General 7

B60R - Vehicles, Vehicle Fittings, OR Vehicle Parts, NOT Otherwise Provided FOR 7

B03C - Magnetic OR Electrostatic Separation OF Solid Materials From Solid Materials OR FLUIDS; Separation BY High-voltage Electric Fields 6

Y02A - Technologies FOR Adaptation TO Climate Change 6

B60K - Arrangement OR Mounting OF Propulsion Units OR OF Transmissions IN VEHICLES; Arrangement OR Mounting OF Plural Diverse Prime-movers IN VEHICLES; Auxiliary Drives FOR VEHICLES; Instrumentation OR Dashboards FOR VEHICLES; Arrangements IN Connection With Cooling, AIR Intake, GAS Exhaust OR Fuel Supply 6

B05B - Spraying APPARATUS; Atomising APPARATUS; Nozzles 5

F01M - Lubricating OF Machines OR Engines IN GENERAL; Lubricating Internal Combustion ENGINES; Crankcase Ventilating 5

F01N - Gas-flow Silencers OR Exhaust Apparatus FOR Machines OR Engines IN GENERAL; Gas-flow Silencers OR Exhaust Apparatus FOR Internal-combustion Engines 4

G10K - Sound-producing DEVICES; Methods OR Devices FOR Protecting Against, OR FOR Damping, Noise OR Other Acoustic Waves IN GENERAL; Acoustics NOT Otherwise Provided FOR 4

Top 15 of 51 technology areas

More on this record

Data Source

USPTO PatentsView, US granted patents 2015–2025

View all rankings → How is Innovation Score calculated?

What to do with this data

K&N Engineering, Inc.'s patent record in context - here's where to go next.

K&N Engineering, Inc.'s lead technology class is B01D (Separation), 46.9% of its portfolio - see every assignee active in that class. Explore B01D
Ranked #2,969 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare K&N Engineering, Inc. against Hitachi Zosen Corporation, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 56.2/100 blends volume, velocity, technology breadth, and claim depth. How it's calculated

Figures reflect USPTO PatentsView grant data through May 2026; pending applications not yet granted are not counted.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the USPTO PatentsView database. Consult a qualified professional before making decisions based on this data.

Read our methodology - how this data is sourced, computed, and verified.

Data sources used on this page

USPTO PatentsView - the disambiguated bulk patent-grant, assignee, and CPC data this page's figures are derived from. patentsview.org
Cooperative Patent Classification (CPC) - the joint USPTO/EPO classification scheme used to group patents by technology area. cooperativepatentclassification.org
USPTO Patent Public Search - the official interface to verify the status of any individual patent. ppubs.uspto.gov

Compiled by PlainPatent , US Patent Intelligence Editorial Process · May 15, 2026

Every figure on PlainPatent is rendered directly from USPTO source data, no number is typed in by an editor. This page draws directly on USPTO source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.